1011065505 has 8 divisors (see below), whose sum is σ = 1617704832. Its totient is φ = 539234928.

The previous prime is 1011065437. The next prime is 1011065507. The reversal of 1011065505 is 5055601101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1011065505 - 2⁸ = 1011065249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011065507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33702169 + ... + 33702198.

It is an arithmetic number, because the mean of its divisors is an integer number (202213104).

Almost surely, 2^1011065505 is an apocalyptic number.

1011065505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1011065505 is a deficient number, since it is larger than the sum of its proper divisors (606639327).

1011065505 is an equidigital number, since it uses as much as digits as its factorization.

1011065505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67404375.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 1011065505 is about 31797.2562495571. The cubic root of 1011065505 is about 1003.6749796471.

Adding to 1011065505 its reverse (5055601101), we get a palindrome (6066666606).

The spelling of 1011065505 in words is "one billion, eleven million, sixty-five thousand, five hundred five".